Finding the Third Proportional to 326,754 and 711,643.50

Step by Step Solution

1. Step 1: Write the proportion equation
   326,754 : 711,643.50 = 711,643.50 : x
2. Step 2: Convert to fraction form
   326,754/711,643.50 = 711,643.50/x
3. Step 3: Cross multiply
   326,754x = 711,643.50 × 711,643.50
4. Step 4: Simplify right side
   326,754x = 506,436,471,092.25
5. Step 5: Solve for x
   x = 506,436,471,092.25/326,754
6. Step 6: Final answer
   x = 1,549,901.37